ClassID:

213470

H01M8/0435 - CPC Classification

Classification description:

Fuel cells; Manufacture thereof; Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids; Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function; Temperature; Ambient temperature of cathode exhausts

Recent Application in this class:
#1
20260018631
2026-01-15

FUEL-CELL EXHAUST SYSTEM, FUEL CELL SYSTEM AND METHOD FOR REDUCING THE HYDROGEN CONTENT IN FUEL-CELL EXHAUST GAS

#2
20250391894
2025-12-25

METHOD AND CONTROL UNIT FOR DETERMINING THE HYDROGEN PROPORTION IN THE EXHAUST GAS STREAM OF A HYDROGEN-POWERED ASSEMBLY

#3
20250316725
2025-10-09

Fuel Cell Air Recirculation System and Control Method

#4
20250140883
2025-05-01

SYSTEMS AND METHODS FOR MANAGING FUEL CELL EXHAUST WATER

#5
20250030023
2025-01-23

FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM

#6
20240178422
2024-05-30

ELECTROCHEMICAL CELL EXHAUST MANAGEMENT SYSTEM

#7
20240021853
2024-01-18

FUEL-CELL SYSTEM WITH EXHAUST-AIR MASS FLOW DETERMINATION

#8
20230378493
2023-11-23

HYDROGEN POWERED FUEL CELL SYSTEM INCLUDING CONDENSER AND METHOD OF OPERATING THE SAME USING PRESSURE CONTROL

#9
20230361324
2023-11-09

FUEL CELL STACK HAVING A SENSOR, AND METHOD USED FOR PRODUCING A FUEL CELL STACK HAVING THE SENSOR

#10
20230197983
2023-06-22

FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEM

#11
20230104149
2023-04-06

SYSTEMS AND METHODS FOR CONTROLLING AND MONITORING A FUEL CELL STACK USING CATHODE EXHAUST HUMIDITY

#12
20230039588
2023-02-09

ELECTRIC POWER GENERATION SYSTEM BASED ON PRESSURIZED FUEL CELL POWER SYSTEM WITH AIR COOLING AND RECIRCULATION AND METHOD FOR ELECTRIC POWER GENERATION BY THE SYSTEM

#13
20230011860
2023-01-12

Solid oxide fuel cell system containing low temperature oxidizer and method of operating same with reduced carbon monoxide output

#14
20230006226
2023-01-05

Fuel cell systems and methods

#15
20220320555
2022-10-06

Fuel Cell Generator with Cryogenic Compression and Co-Generation of Liquefied Air

#16
20220255096
2022-08-11

DETERMINATION DEVICE AND METHOD FOR CALCULATING A MOISTURE VALUE IN A FUEL CELL SYSTEM

#17
20210226236
2021-07-22

Fuel cell system, and method of estimating humidity in exhaust gas therefrom

#18
20200161675
2020-05-21

FUEL CELL SYSTEM WITH AN ANNULAR REFORMER

#19
20200144652
2020-05-07

Fuel cell system

#20
20200083552
2020-03-12

Fuel cell system

#21
20190198900
2019-06-27

Fuel cell system, mobile object, and exhaust gas discharge control method

#22
20190173107
2019-06-06

Fuel cell system and control method for fuel cell system

#23
20190165393
2019-05-30

Fuel cell system and control method of fuel cell system

#24
20190148748
2019-05-16

System and method for fuel cell stack temperature control

#25
20190131642
2019-05-02

Fuel cell system and control method for turbine

#26
20190067717
2019-02-28

Humidifier and fuel cell system having the same

#27
20180294491
2018-10-11

Fuel cell vehicle

#28
20180183078
2018-06-28

Fuel cell cooling system

#29
20180175409
2018-06-21

Fuel cell system

#30
20180151896
2018-05-31

Recirculation fuel cell

#31
20170237094
2017-08-17

Fuel cell system and method of controlling fuel cell system

#32
20170092972
2017-03-30

Relative humidity estimators for fuel cell stack ports

#33
20170069924
2017-03-09

Solid oxide fuel cell or solid oxide electrolyzing cell and method for operating such a cell

#34
20160164117
2016-06-09

Coolant bypass structure

#35
20160149234
2016-05-26

Fuel cell system

#36
20160141692
2016-05-19

Fuel cell stack and steam reformer systems and methods

#37
20160126565
2016-05-05

System and method for controlling temperature of fuel cell stack

#38
20160006060
2016-01-07

Method of controlling operation of fuel cell system

#39
20150380748
2015-12-31

Heat reclamation and temperature control for submersible vehicles that utilize fuel cells

#40
20150303496
2015-10-22

Power generation system and method for cooling fuel cell exhaust in power generation system

#41
20150221961
2015-08-06

Fuel cell system and control method thereof

#42
20150176140
2015-06-25

Solid oxide fuel cell or solid oxide electrolyzing cell and method for operating such a cell

#43
20150162629
2015-06-11

Fuel cell system

#44
20150037697
2015-02-05

Power conversion system

#45
20150030951
2015-01-29

Fuel cell assembly

#46
20150030950
2015-01-29

Fuel cell assembly

#47
20140190144
2014-07-10

POWER GENERATING SYSTEM AND METHOD FOR OPERATING THE SAME

#48
20140120436
2014-05-01

Fuel cell humidification management method and system

#49
20140011105
2014-01-09

Reverse flow relief valve for a fuel cell system

#50
20130302713
2013-11-14

Air supply and exhaust structure for fuel cell

#51
20130288148
2013-10-31

Fuel cell system

#52
20130157161
2013-06-20

Fuel cell system and control method for fuel cell system

#53
20130149625
2013-06-13

Fuel cell system

#54
20120321972
2012-12-20

Water management in fuel cells

#55
20120251910
2012-10-04

Method for controlling fuel cell system with in-stop-mode power generating process and startup process

#56
20120088173
2012-04-12

Variable air utilization increases fuel cell membrane durability

#57
20120064422
2012-03-15

Fuel cell system and control method thereof

#58
20110311889
2011-12-22

Fuel cell system

#59
20110129744
2011-06-02

Thermal management system for high-temperature fuel cell

#60
20110086285
2011-04-14

Fuel cell system and method for controlling fuel cell system

#61
20110053012
2011-03-03

Fuel cell system with improved humidification performance

#62
20110033763
2011-02-10

Fuel cell system and reverse flow relief valve

#63
20100330448
2010-12-30

Fuel cell power plant having improved operating efficiencies

#64
20100304254
2010-12-02

METHOD FOR CONTROLLING A FUEL CELL UTILIZING A FUEL CELL SENSOR

#65
20100304253
2010-12-02

METHOD OF CONTROLLING A FUEL CELL SYSTEM UTILIZING A FUEL CELL SENSOR

#66
20100304234
2010-12-02

Method for controlling amount of air supplied to fuel cell

#67
20100261082
2010-10-14

Fuel cell system

#68
20100261079
2010-10-14

Fuel cell system

#69
20100167097
2010-07-01

HEAT RECOVERY METHOD AND APPARATUS IN FUEL CELL SYSTEM, AND FUEL CELL SYSTEM INCLUDING THE APPARATUS

#70
20100086812
2010-04-08

Supply system and warning device for a fuel cell stack and method for controlling the supply system

#71
20100055508
2010-03-04

FUEL CELL SYSTEMS WITH WATER RECOVERY FROM FUEL CELL EFFLUENT

#72
20090269630
2009-10-29

Fuel cell system and its control method

#73
20090155651
2009-06-18

Fuel cell system and generation control device

#74
20090123797
2009-05-14

Efficient micro fuel cell systems and methods

#75
20090061270
2009-03-05

Fuel cell system and method of operating the fuel cell system

#76
20090053564
2009-02-26

METHOD AND SYSTEM FOR OPERATING FUEL CELL STACKS TO REDUCE NON-STEADY STATE CONDITIONS DURING LOAD TRANSIENTS

#77
20080248351
2008-10-09

Fuel Cell System

#78
20080248336
2008-10-09

Water management in fuel cells

#79
20080216773
2008-09-11

Home appliance system using high temperature fuel cell system and method of supplying super heated steam

#80
20080187803
2008-08-07

Wax elements as passive control devices in fuel cell power systems

#81
20080171241
2008-07-17

MICRO FUEL CELL SYSTEM START UP AND SHUT DOWN SYSTEMS AND METHODS

#82
20080088043
2008-04-17

Fuell cell system and operation method of fuel cells

#83
20080038601
2008-02-14

EFFICIENT MICRO FUEL CELL SYSTEMS AND METHODS

#84
20070281193
2007-12-06

Multiple pressure regime control to minimize RH excursions during transients

#85
20070207353
2007-09-06

Cascaded fuel cell stack operation with anode gas recirculation

#86
20070184315
2007-08-09

Control of fuel cell stack electrical operating conditions

#87
20070154746
2007-07-05

Purging a fuel cell system

#88
20070141418
2007-06-21

Fuel cell system control device

#89
20070141412
2007-06-21

Sensorless relative humidity control in a fuel cell application

#90
20070072016
2007-03-29

METHODS AND APPARATUS FOR IMPROVING THE COLD STARTING CAPABILITY OF A FUEL CELL

#91
20070059566
2007-03-15

Warm-up apparatus for fuel cell

#92
20070026278
2007-02-01

Fuel cell system and charge amount adjustment method for energy storage

#93
20070026277
2007-02-01

Fuel cell system and method

#94
20060286418
2006-12-21

Fuel cell system for setting predetermined operation state when substitutional value control is impossible

#95
20060263652
2006-11-23

Fuel cell system relative humidity control

#96
20060263651
2006-11-23

Relative humidity profile control strategy for high current density stack operation

#97
20060183005
2006-08-17

Drying method for fuel cell stacks

#98
20060166058
2006-07-27

Fuel cell system ensuring stability of operation

#99
20060093880
2006-05-04

Fuel cell system and method of controlling idle stop of the fuel cell system

#100
20060068240
2006-03-30

Fuel cell system

#101
20050233182
2005-10-20

Method for real-time monitoring and control of cathode stoichiometry in fuel cell system

#102
20050221146
2005-10-06

Separator and fuel cell using that separator

#103
20050186455
2005-08-25

Micro fuel cell system start up and shut down systems and methods

#104
20050075816
2005-04-07

System and method for controlling a fuel cell testing device

#105
20050069741
2005-03-31

Fuel cell system

#106
20050014040
2005-01-20

Fuel preheat in fuel cells and portable electronics

#107
20050008909
2005-01-13

Efficient micro fuel cell systems and methods